Electronics and lifestyle

555 Automatic green house timer

Hello again!
A year ago I decided to make a fully automatic green house, but, because of no free time, I eventually backed out.
Anyway, before getting out of this project I made a circuit that will activate a water pump, for aproximate 2 minutes, every 24 hours.

I combined the circuit from here and the 555 timer monostable circuit from wiki.

You can see the result here :

R8 – 3M will be the jumpper from a CD4060 output pin (in my PCB you can choose from 2-3) and 555 trigger (pin 2) .
To change the duration of the “on time” you will have to modify the R7 and capacitor value (100k and 1000uF in my version).
This is the equation from wikipedia, where t is in seconds, R is in ohms and C is in farads.
To modify the time of the CD4060 , you have this table :